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(No Model.)

G. A. SCOTT. ELECTRIC GUT-OUT.

No. 445,822. Patented Feb. 3,1891.

UNITED STATES PATENT OFFICE.

GEORGE A. SCOTT, OF NElV YORK, N. Y., ASSIGNOR TO SIGMYND BERGMANN, OF SAME PLACE.

ELECTRIC CUT-OUT.

SPECIFICATION forming part of Letters Patent No. 445,822, dated February 3, 1891.

Application filed August 13, 1890. Serial No. 361,939. (No model.)

To a-ZZ whom it may concern:

Be itknown that I, GEORGE A. SCOTT, of New York, in the count-y and State of New York, have invented a certain new and useful Improvement in Electrical Cut-Outs, of which the following is a specification.

I will describe an electrical cut-out embodying my improvement, and then point out the novel features in claims.

In the accompanying drawings, Figure l is a central vertical section of a cut-out embodying my improvement. Fig. 2 is a bottom view of the upper part. Fig. 3 is a top view of the lower part. Fig. 4 isa perspective view of a connecting-piece comprised in said outout. Fig. 5 is a side view of a cut-out.

Similar letters of reference designate corresponding parts in all the figures.

It will be seen that the cut-out embodying my improvement is made in the form of a suspension device which may be fastened to a ceiling and which has depending from it wires, to which an electric lamp may be attached. Of course my improvement is not restricted to this form of device.

A B designate two parts made of porcelain or other suitable insulating material and preferably of cylindric form. The upper part A may be fastened to a ceiling by screws or oth- 0 erwise. The lower part B may be secured to the upper part by screws 0 or other devices. The upper part A is shown as provided in its under side with a cavity a, which is useful because it will accommodate devices projecting upwardly from the lower part B. The upper part A is shown as having at diametrically-opposite parts of its under side radial recesses a a and into these are fitted the inwardlyturned ends of metal plates A A which extend up the sides of the part A and have combined with them screws A whereby 1ine-wires may be electrically connected with the plates. The plates may be fastened to the part A by rivets or pins extending up through their inner ends into the part A, or by any other suitable means. If the screws A be made to pass through the plates and into the part A, they may also aid in fastening the plates in position.

The part- B is provided with a central hole 7), and at diametrically-opposite points it has radial recesses 1) b in which are accommodated metal plates B 15*. These metal plates at their inner ends extend over the top of the part B, and between their inner and outer ends are bent downwardly into the recesses Z) N. Their outer portions extend along these recesses close to the bottoms. Preferably these plates 13 B are fastened to the part B near their inner endsas, for instance, by rivets or pins passing through theirinner end portions into the part 13. They have combined with them binding-screws B, and if the latter are made to pass through the plates into the part B they will aid in fastening the plates. Preferably the outer end portions of the plates B B will be left free to move in the recesses and the plates will be made resilient, so that their outer end portions will have a tendency to move upwardly. lVires D I) are passed up through the central hole I) of the part B and at the ends fastened to the binding-screws B E E designate connecting-pieces which are shown as severally consisting of two rectangular plates 6 of metal, having a block c of insulatin g material introduced between them. The block of insulating material has a groove in one side, and in this is placed a fusible wire 6 which at one end is united by solder or otherwise to one of the plates e and at the other end is united to the other plate. The fusible wire of course establishes electrical communication between the two plates. The connecting-pieces E E are of such size as to fit in the recesses I) b of the part B above the outer end portions of the plates B B and to fill the space between the latter and the outer end portions of the plates A A and the metal plates of such connectingpieces are intended to be maintained in contact with the plates A A B B By making the plates B B resilient and fitting the plates to the part B in such manner that the outer end portions of these plates BB will be free 5 to move toward an d from the part A said plates B B will be made to press the connectingpieces firmly against the plates A A and in this way a good electrical contact will be established between the plates of the connect- 10o ing-pieces a d the plates B B A A The lower plate of each connecting-piece is shown as turned downwardly beyond the periphery of the part B to form a lip or hand-piece, which will facilitate the removal of the conmeeting-piece.

It is obvious that if for any reason it is desirable to repair or restore a fusible wire the connecting-piece needing such attention may be pulled out without otherwise disturbing the cut-out, and after receiving proper treatment may be reinserted.

While I have shown a cut-out provided with two connecting-pieces, itis not at all necessary that two should be used.

It will be seen that there is a slight groove (indicated by dotted line, Fig. 3) in the part B opposite the fusible Wire of the connecting-piece. This is useful, as it affords a vent for the escape of gases.

What Iclaim as my invention, and desire to secure by Letters Patent, is-

1. In an electrical cut-out, the combination of two parts, plates arranged on the two parts and a connecting-piece composed of plates e,

an interposed block 6', of insulating material, and a fusible wire 6 one of the plates of said connecting-piece being bent to form a lip or hand-piece, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

GEORGE A. SCOTT.

Witnesses:

ARTHUR H. SMITH, IVY HAWES. 

